Home / 140,905.84-194,451.60-77,242.24

Finding the Fourth Proportional to 140,905.84, 194,451.60 and 77,242.24

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Solution

The fourth proportional to 140,905.84, 194,451.60 and 77,242.24 is: 106,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,905.84 : 194,451.60 = 77,242.24 : x
  2. Step 2: Convert to fraction form
    140,905.84/194,451.60 = 77,242.24/x
  3. Step 3: Cross multiply
    140,905.84x = 194,451.60 × 77,242.24
  4. Step 4: Simplify right side
    140,905.84x = 15,019,877,155.58
  5. Step 5: Solve for x
    x = 15,019,877,155.58/140,905.84
  6. Step 6: Final answer
    x = 106,595.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.